Here's the definition that's on our security deposit page, which doesn't get into the nitty-gritty: Normal wear and tear is a term that Wisconsin law does not define.
(3)Protein Fat-Free Percentage, Protein Fat-Free Content, PFF Percentage, PFF Content or PFF of a product means the meat protein (indigenous to the raw, unprocessed pork cut) content expressed as a percent of the non-fat portion of the finished product.
A chemical used to manufacture the fluoropolymers that make up nonstick cookware's coating, PFOA is associated with tumors and developmental problems in animals, and experts are concerned about its possible effects on humans.